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피라미드 구조를 가지는 초경량 금속 내부구조 접합판재의 제작 및 특성평가
정창균(Chang Gyun Jung),윤석준(Seok-Joon Yoon),성대용(Dae-Yong Sung),양동열(Sung Dong-Yol),안동규(Dong-Gyu Ahn) 한국정밀공학회 2004 한국정밀공학회 학술발표대회 논문집 Vol.2004 No.10월
Inner structured and bonded panel, or ISB Panel, as a kind of sandwich type panel, has metallic inner structures which have low relative density, because of their dimensional shape of metal between a pare of metal skin sheets or face sheets. In this work, ISB panels and inner structures formed as repeated pyramidal shapes are introduced. Pyramidal structures are formed easily with expanded metal sheet by the crimping process. Three kinds of pyramidal structures are made and used to fabricate test specimen. Through the multi-point electrical resistance welding, inner structures are bonded with skin sheet. 3-point bending tests are carried out to measure the bending stiffness of ISB panel and experimental results are discussed.